Can-soldering machine.



E. F| HARTLOVE. GA SOLDERING MACHINE. APPLIUATION FILED 001.14, 1908.

Patented oct. 19,1909.

5 SHEETS-SHEET 2.

E. P. HARTLOVE. GAN soLDERING MACHINE. APPLICATION FILED 00T.14, 1908.937,524, Patented Got. 19,1909.

5 SHEETS-SHEET 3.

E. F. HJMTLOVEl GAN SOLDERING MAGINE. APPLICATION 311.51) conm, 190s.

Patented Oct. 19, 1909.

5 SHEETS-SHEET 4.

E. P. HARTLOVE. CAN SOLDBRING MACHINE. APPLICATION FILED 00T.14, 1908. y937,524, 4 Patented Oct. 19, 1.909.

E @nuova/bol of the city of Baltimore and State of Maryland, `haveinvented certain Improvements can when the same is rolling in aninclined -To all 'whom it may concern:

vcan body upon which the solder melted by is brought into contact withabody of melt-- with thesolder4 on the body, conducts pracj heated can.

l improved can-soldering machine, and Fig.

on the dotted line together with a side view of a can which is shown insoldering l UNITED srnrnsrnrnnr orricn.

EMOBY F. HARTOVE, 0F` BALTIMORE, MARYLAND.

cnn-sonnnnme MAcnINE.

Specification of Letters Patent. Patentedit. 19, 1909,

Application led October-14, 1,908.' Serial No. 457,606.

Be it known that I, EMORY F. HARTLOVE,

in- Can-Soldering Machines, of which the following `is a specification.

This invention relates to the soldering of the head joints 4ofsheet-metal cans.

The said invention consists in the application of wire solder to thebody ofa heated touching the heated can, has been deposited,

ed solder which owing to the narrowness of the channel in which itiscontamed has` a convex or rounded surface whlch uniting tically allA thesolder thereon tothe bath, the solder remaining on the body having ynoappreciable thickness.

It further consists in feeding the wire solder to the joint of therolling can intermittingly, and to a limited portion of itscircumference, in order that only a predetermined and 'suicientgquantityof solder wire will be melted by contact with the In the furtherdescription of the said invention which follows, reference is made tothe accompanying drawings, forming a part hereof and in which,-

Figure ,l is anexterlor side view of the 2 a plan of the same. Fig. 3 isan enlarged end view of certain parts of Fig. 1 looking in the directionindicated by the arrow in that figure. Fig. 4 is an enlarged exteriorside view of a portion of the machine. Fig. 5,V is a4 still furtherenlarged section of Fig. 4 taken position. Gis an exterior side view ofA the solder lbath shown in Fig. 5, looking in the direction indicatedby the arrow in that figure. Fig. 7 is a much enlarged View of certainparts of the machine shown Figs. 1 and 4, as-seen from the farsidethereof,

land Fig. 8 a view of Fig. 7 looking in the direction indicated by thearrow in that tigure,` with certain parts thereof removed, and includingcertain attachments not illustrated in Fig. 7. y

Referring now to the drawings, 1 is the frame of the machine, and '2, 2are endless belts or sprocket chains placed side by side on themachine,` the said belts being' supported by thepulleys 3 and 4, theformer situated at the receiving, and the latter at the delivery' end ofthemachine and secured to the driving shaft 5. These belts or sprocketchains are provided with carriers 7 for the cans which are denoted by 9-The belts or chains 2 move in the direction indicated by the dottedarrow in Fig. 1, and the upper lay of each chain is supported in aninclined position by a straight rail 10, while the lower lay passesunder idle tightening pulleys 12 shown only in Fig. 1.

13 is a bath 'containing solder which is kept in a molten condition byiames issuing from the pipe 15. Two baths are employed, one at each sideof the machine, but they being identical in construction, one only isillustrated.-

By reference to Fig. 5, it will be seen that the bath is provided with apartition 17 a portion a of which serves as a bearing for the iange ofthe can head during the soldering operation; and that the space bbetween the portion a of the partition 17 and the wall c is made narrowin order that only a limited portion of the body of the can adjacent tothe flange of the head'comes into contact-with themolten solder which isrepresente/d by 20. It will also be seen that the main body of moltensolder in the bath '13 is on a slightly lowerplane than the bearing a,and in consequence, -no solder rests loo on the said bearing, and cannottherefore come in contact with the head of the can; and the peculiarityof lliquids contained in narrow spaces to assume a rounded surface orone in which the center is higher than the edge;-. surrounding thespace, is availed of in this invention to bring the melted solderagainst the -joint of the can which is elevated slightly above thebearing. The cansl being in an inclined position purpose.

The cans 4:before the application thereto of -slder are heated by minuteflames which issue from apertures in pipes 22 which contain a mixture ofgas and'air under pressure,

and the' cans are by this means retained at such a temperature as willcause them to melt the ends; of Wire solder'with which they come ineontaetin the operation of the machine hereinafter described.

23, 24 and-25 are tubes through which wire solder is fed by meanshereinafter described, `to the can body adjacent to the joints to besoldered, and 27, a similar tube through which Wire solder is suppliedto the bath 13.

The'ends of the tubes which conduct the solder wire to the can joint,and the wire issuing'therefrem may be slightly heated in orderto-facilitat'e` the melting of the wire When brought into contact withthe heated i can; and in Fi'gn is shown a burner denoted by 28 so placedas to answer the purpose.

it is desirable Athat the wire solder should be fed intermittingly tothe joints of the cans, and to effect this result, the followingmechanism is employed. 29, 29 are spools (see Figs. 1 and 2) upon whichthewire solder d is wound. These spools are situated at the delivery endof the'machine, and the solder Wires are extended through the tubes 23,24 :1nd 25 and to the path taken by the joints of the cans as the cansare rolled along the machine, and one wire is conducted into and throughthe tube 27 which leads to the solder bath 13.

At a point between the spools and the bath, and extending transverselyof the machine, is a suitably supported shaft 30 which is intermittinglyrotated from the driving shaft 5 bymeans of the mutilated -gear Wheels32 and 33; and to the .shaft 30 is secured the. sprocket wheel 35. 37 isanother shaft-.shown as situated directly over the driving shaft 5,carryinga sprocket wheel 4() which is much larger than the one 35, anddriven from the latter. by means of the sprocket chain 42.

On the shaft 37"are secured the grooved feed Wheels 43 u on which restthe solder wires (l leading. rom the spools 29 to the ltubes 23, 24 25,and 27; and in order that these Wheels will effectively feed the saidsolder Wires. forward, there is placed over each feed ivheel, aspring-held tightening Wheel 45 which rests on the solder wire andclamps the same so that the rotary movement of the feed wheel willcommunicate a For reasons hereinbefore briefly explained,

[ longitudinal forward motion to the solder -wlre.

.are lifted, feeding of the solder wires is suspended. L I thereforeplace over the fixed rod 53, the sleeve 55 (see Figs. 7 and 8) andprovide the said sleeves with toes 57 which are directly beneath thearms 50. Each sleeve is providedwith a handle 59 which if turned in thedirection indicated by the curved arrgw in Fig. 7, brings the toes 57into contact with thel underside of the links 50land raises them therebyliftingA the lightcningm'heels from contact with the solder wires. eedmgof.tl'1e solder is then suspended unti j-.the tightening wheels areallowed to fall 'tottheir original position and again bear on thewires..v

The delivlcryf-feilid of each of the..rails 10 is slightly inclineddownward as shown to the left of Figs. l and 4, and leads into adelivery chute zi3() which serves to conduct the cans to the upper layof an endless movA ing belt B2i-which passes through a tray (Srlsupplied with suliicient water vto keep the belt wet- VBy thisarrangemenf` thev solder'in the newly-soldgred joints of the-cans ischilled as the cans are carried to the""'e1iF trance endof the maehire.n-

The maeliinetbeing inojoeration, uns0ldered cans leaving' t-he'entranccchute- G6- fall on the endlessblt or chain' 2 ahd being caughtby the carriers 7 are carried. forward and heated by gas jets issuingfrom the pipes 22. When the cans reach the ends of t-he solder Wires,Ithe solder is melted and iiows into the joints between' the heads and"bodies of the cans, and all surperfluous solder as the cans are rolledforward, 1s conducted by the solder in the narrow channel to the moltensolder in the bath.- The intermittent action of the solder feedingdevices is of importance in that it results in a decided economy ofsolder in the form of Wire, and without any risk of producing defectivejoints.

It will be understood that in the soldering operation, the cans have topass twice through the machine as one joint only is soldered in a singlepassage; and that the cans after the first soldering operation aretransferred tothe second entrance chute (not shown) by which they aredeposited on the second endless belt or chain in a rev-"1rd o adjacentcarrying devices,

position and the .soldering operation .described is repeated, when thecans-:are: finally delivered with both their heads soldered.

I claim as my invention,- v

1. In a soldering machine, a molten solder bath, and means to roll theheaded end of a can lWhile, the can is in an. inclined position,

along the bath With. the body only of the canin yContact withthe'solder, combined 'with devices to carry the end of a solder -Wireover the bath, substantially as specified.-

:2. In a soldering machine, a molten solderv specified. j

3. In a seldering machine, a molten solder bath, means to roll vtheheaded end of a can While the ,can is in an 4inclined position, j alongand'over. the solder'f in ,the bath, and

devices to carry the end 'of sol'der Wire into the path taken bythe bodyadjacentto the head joint,combned With means .to intermittinglyeedthewire solder through the sbstantially as speciied. 4;. In asoldering machine, a molten solder bath, means to roll the headed end ofa can- While the can 1s man mclined position along and over the solderin the bath, and devices to carry the end of a solder Wire into the pathtaken by the head joint, combined With means to intqrmittingly -eed theWire solder VVthrough the carrying devices, and burners to heat the cansbeforethe same reach the.

solder, substantially as specified.

5. In a soldering machine, a molten solder j' bath, means to roll theheaded end of a can While the can is in an inclined position, over thesolder bath, a tube With one of its endsplaced in the path taken by theAhead joint combined With devices to heat the cans before they reach orcome under the said tube, I and appliances to intermittingly feed solderWire through the said tube, substantially as In a soldering machine, amolten solder bath, means to roll the headed end of a can While the canis in an inclined position through the solder', bath, and devices tocarry the end of a solder Wire over the solder bath and into the pathtaken by the head joint,

combined with burners whereby the cans are heated before reaching thesolder Wire, sub-` stantially as specified,

7 In a'soldering machine, a molten solder bath, means to roll the headedend of a can While the can is in an inclined position,A

through the solder'bath, a tube With one of its'ends vplaced over thesolder bath and in the path taken by the head joint, combined Withdevices to heat the cans before they reachor come under the said tubeand appliances to feed solder Wire through the said tube, substantiallyas specified.

Witnesses p A. W. ,HnR'rLovm -IILMERQ EMORY..

EMORY F. HARTLOVPI`

